Gauge board for breaking wall soard and the like



TJI

Patented July 15, 1924.

UNITED STATES PATENT OFFICE. l

JOHN SCHUMACHER, SR., OF LOS ANGELES, CALIFORNIA.

GAUGE BOARD FOR BREAKING V! ALL BOARD AND THE LIKE.

Application filed November 25, 1921.

To f1.7] whom t concern.'

Be it known that I, JOHN SCHUMAGHER, Sr., a citizen of the United States, residing at Los Angeles, in the county of Los Angeles and State of California, have invented new and useful Improvements in Gauge Boards for Breaking `Wall vBoard und the like. of which the following is a specification.

This invention relates to gauge boards for breaking wall board and the like, or plaster board or similar or analogous building material or sheets or sla-bs of other material, and it has for its object to provide means of this character whereby such sheets or slabs of material may readily be broken and subdivided into shorter slabs or lengths or sheets, Vsuch apparatus being particularly useful inbreaking ofi damaged, broken, muti-lated or defective portionsv ofv such slabs or sheets of material, to lsave the reg maining good or perfect or useful, or salable portions thereof. In accordance with the invention -a board with gauge indications or graduations is provided. mounted upon suitable supports, uprights or props or legs, and having an edgerail or ledge upon which the edge of the slab or sheet of material may be rested and supported during ing, A designates a the positioning or advancing of the sheet or slab prior to the breaking operation. Adjacent one end of such board or frame are provided spaced members between which the board or slab is fed. and finally positioned in accordance with the desired length of the saved or reclaimed slab or sheet, as determined by the graduations on the board or frame. The board when so positioned is subjected tothe cutting or scoring action of a suitable edge implement which produces a relatively weak structural zone at and registering with the said spaced members. The projecting portion to be broken off is then given a bend in each direction, causing a fracture at the said weakened zone, the slab or sheet being thus cleanly broken and severed to remove the desired portion thereof. It will be understood of course that boards or slabs may be treated with this apparatus merely for purposes of subdivision, whether portions thereof are defective or not, the use of the apparatus permitting a speedy and effective and active operation.

The invention has for further objects the provision of improved apparatus of the end of the Serial No. 517,625.

character stated, which will be relatively simple and inexpensive in construction, combined with Vpositiveness, curacy in action and use, which willY be compact in form and' durable and generally superior in ciiiciency and serviceability.

With the above and other objects in view, the invention consists in the novel and use-` ful provision, relative arrangement, combination, association and inter-relation and construction of parts, members and features, all as hereinafter described, shown in the drawing, and .finally pointed out in the claims. f

In the drawing: Y. Figure l is a perspective view of a gauge board for breaking or severing the slabs of material, the same being organized in ac` cordance with the invention;

FigureQ is ani end viewA thereof 5 Figure 3 is an enlarged 'fragmentary View illustrating-the use' of theinvention; and, Figure 4 is aface view of an implement to be used in -scoring or vweakening the board at the zoncat to-be produced. y

Corresponding parts vin allthe iigures are designated by the same referencecharacters. Referring with particularity to the draw frame membenof which l is the board, .2 a ledge. or, projecting member and 3 legmembers both front and rear for supporting the board l. Attached at one board l are spaced members 4 and 5. The member 4 is in reality. held 4to one of the legs S'by means of straps 6r and the spaced .members 4 Aand 5 are held parallel relation vbymeans ofmembers There are two members 7, one near the top of the members 4 and 5 and one near the bottom of said members, and in addition the members 7 are pivotally joined to the members 4 and 5 as by means of bolts 8. This gives a parallel motion so that the space that may exist between the members 4 and 5 is at all times equal and the movement is. parallel. Each member 4 and 5 is provided with laterally projecting lips or flanges 9 and l() and between the members 4 and 5 and the lips 9 and 10 an object I such as wall board, plaster board or the like l1 may be received. The board l is provided with indications 12 so that the plaster board, wall board or the like ll may be slid along as shown by the dotted line in Figure of board has been slipped through the spaced facility and. ace` which the fracture is i l, and when the desired length members and a knife member I3 such as shownin Figure i may run along the lateral edge of the member l0 and score the board ll, whereupon the board vmay be moved back and forth by grasping an end and the edges of the lip members 9 and l() will ser-ve to brealr the board and free it from the board resting upon the ledge 2 and against the board l. It, is of course possible to tighten the nuts of the bolts 8 so that the lips 9 and l0 will securely wedge the board ll between them, .or the nuts may be left loose so that the members l and 5 may readily move and accommodate the different sized board 'received between said members. A device of this character is extremely useful for the purpose intended and accomplishes the function required of it in a very facile manner.

It is obvious that many changes and moditications may be made in practicing the invention in departure from the particular showing, all, however, without departing from the true spirit of the invention and the scope of the appended claims.

Having thus disclosed my invention, I claim and desire to secure by Letters Patent z l. A device of the .character disclosed, comprising a frame for supporting the work to be fractured, said frame being provided at one extremity with spaced members between which the work is passed and at the plane of which members the Work is fractured under pressure; said spaced members comprising bars provided with laterally pro jecting flanges at Ythe outer edges of which the fracture of the work is produced.

2., In a device of the character disclosed, comprising legs, a board supported by said legs and in substantially upright position, a led e member joined with said board Where y work may be supported upon said ledge and rest on said board, one extremity of said board being provided with spaced members between which work is passed. to be fractured,

3, In a device of the character disclosed, comprising legs, a board supported by said legs'and in substantially upright position, a

ledge member joined with said board 'whereby Werl; may be supported upon said ledge and rest on said board, one extremity of said board being provided with spaced members between which work is passed to be fractured;

said spaced members including bars formed with laterally projecting flanges, said Werl; being received between said flanges and sz bars being relatively movable.

lv. In a device of the character disclosed. comprising legs, a boa-rd supported by said and in substantially upright position, a ledge member joined with said board whereby work may be supported upon said ledge and rest on said board, one extremity of said board being provided with spaced members between which work is passed to be frac tui-ed; one of said spaced members being associated with the board and provided with a flange in substantially the same plane as the surface of the board against which the work is placed In a device of the character disclosed, comprising legs, a board supported by said legs and in substantially upright position, a ledge member joined with said board Whereby work may be supported upon said ledge and rest on said board`I one extremity of said board being provided with spaced members between which work is passed to be fractured; one of said spaced members being associated with the board and provided with a flange in substantially the same plane as the surface of the board against which thework is placed; a second bar member provided with a flange and coupling means between said bar members whereby there is relative movement therebetween, said couplingmembers acting to hold the bar members in substantial parallelism during such movement. In testimony whereof, I have-signed my name to this specification in the presence of two subscribing witnesses, I

JOHN SCHUMACHEB, SR. llVitnesses .I. CALVIN BROWN, J. SriU'rT. 

